大约有 47,000 项符合查询结果（耗时：0.0481秒） [XML]
Catch multiple exceptions in one line (except block)
I know that I can do:
5 Answers
5
...
Returning value from Thread
...;Integer>() {
@Override
public Integer call() {return 2;}
});
Now all you do is say value.get() whenever you need to grab your returned value, the thread is started the very second you give value a value so you don't ever have to say threadName.start() on it.
What a Future is, is a pro...
Is there a vim command to relocate a tab?
...; :call TabMove(-1)<CR>
map <F10> :call TabMove(1)<CR>
Now you can move your current tab by pressing F9 or F10.
share
|
improve this answer
|
follow
...
are there dictionaries in javascript like python?
...l Map object (i.e. "There are no real associative arrays in Javascript" is now incorrect).
– robocat
Oct 4 '16 at 22:29
add a comment
|
...
How do I shuffle an array in Swift?
...a bit of updating as countElements is gone, and it’s replacement, count, now returns a T.Index.Distance so the constraint needs to be on C.Index.Distance == Int. This version should work: gist.github.com/airspeedswift/03d07a9dc86fabdc370f
– Airspeed Velocity
...
Removing whitespace between HTML elements when using line breaks
...n the images will be 0 in width, and the images won't be affected.
Don't know if this works in all browsers, but I tried it with Chromium and some <li> elements with display: inline-block;.
share
|
...
Efficient string concatenation in C++
...ly will have much better efficiency simply by using operator += instead.
Now after that disclaimer, I will answer your actual question...
The efficiency of the STL string class depends on the implementation of STL you are using.
You could guarantee efficiency and have greater control yourself by...
How do you query for “is not null” in Mongo?
...: 1 }
{ "_id" : ObjectId("544540f11b5cf91c4893eb99"), "otherField" : 2 }
Now, create the sparse index on imageUrl field:
db.foo.ensureIndex( { "imageUrl": 1 }, { sparse: true } )
{
"createdCollectionAutomatically" : false,
"numIndexesBefore" : 1,
"numIndexesAfter" : 2,
"ok" : 1
}
...
Drawing a connecting line between two elements [closed]
...visit https://api.jquery.com/position/ (you can use offset() method too)
Now as we have obtained all the positions we need we can draw line as follows...
line1
.attr('x1', pos1.left)
.attr('y1', pos1.top)
.attr('x2', pos2.left)
.attr('y2', pos2.top);
jQuery .attr() method is used to cha...
Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?
...en using core.autocrlf, the bogus "LF
will be replaced by CRLF" warning is now suppressed.
As quaylar rightly comments, if there is a conversion on commit, it is to LF only.
That specific warning "LF will be replaced by CRLF" comes from convert.c#check_safe_crlf():
if (checksafe == SAFE_CRLF_WA...